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picture1_Calculus Pdf 168749 | C7 Integration Totalchange Jan14


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File: Calculus Pdf 168749 | C7 Integration Totalchange Jan14
module c7 total change an introduction to integral calculus module c7 total change an introduction to integral calculus 7 table of contents introduction 7 1 7 1 area under the ...

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            Module C7 – Total change – an introduction to integral calculus
            Module C7
            Total change – 
            an introduction to integral 
            calculus                                           7
          Table of Contents 
           
          Introduction .................................................................................................................... 7.1 
          7.1  Area under the curve .............................................................................................. 7.3 
          7.2  The definite integral ............................................................................................... 7.11 
          7.3  The antiderivative .................................................................................................. 7.19 
          7.4  Steps in integration ................................................................................................ 7.19 
           7.4.1  Using standard rules of integration .................................................................. 7.19 
           7.4.2  Integrals of functions with constant multiples ................................................. 7.21 
           7.4.3  Integrals of sum and difference functions ........................................................ 7.21 
          7.5  More areas ............................................................................................................. 7.22 
          7.6  Applications of integral calculus ........................................................................... 7.31 
          7.7  A taste of things to come ....................................................................................... 7.36 
          7.8  Post-test ................................................................................................................. 7.37 
          7.9  Solutions ................................................................................................................ 7.39 
                                                                 Module C7 – Total change – an introduction to integral calculus        7.1
                         Introduction
                         In this final section we will investigate another important aspect of calculus called integral 
                         calculus. One of the most important applications of integral calculus is to find areas and 
                         volumes. These problems have been considered by practitioners since the earliest times with 
                         the Greek mathematician Eudoxus (about 400 BC) credited with developing one of the first 
                         steps in calculus. He found an approximate area of the circle by sandwiching it between 
                         polygons with more and more sides.
                         This was developed further by Archimedes to include many types of shapes, but it wasn’t until 
                         the 17th Century when Johannes Kepler, during the course of his astronomical investigations, 
                         wanted a method for finding areas of sectors that ideas moved ahead. Kepler was interested in 
                         two things. Firstly, as an astronomer, he wanted to find the area of an ellipse formed by the 
                         path of planets around the sun. He approximated this by using areas of triangles with their 
                         vertex at the sun.
                                                                                                    Planet
                                                                           Sun
                         Secondly, as a connoisseur in wine, so the story goes, he wanted to find the exact method to 
                         calculate the volume of wine in kegs. Kepler thought of the wine barrel as being made up of 
                         infinitely many infinitely thin disks, the sum of whose areas became the volume.
                         From a more every day perspective, suppose you were a wine merchant in the 17th Century. In 
                         those days the kegs were all hand made, and each one would hold a different amount of wine. 
                         You would need to know approximately how much wine you were selling to the innkeepers. 
                         Just as important the innkeepers would want to keep a check on you to ensure you were not 
                         overcharging on the amount of wine bought.
                      7.2  TPP7183 – Mathematics tertiary preparation level C
                      In the diagram below, think about the ways you could estimate the volume of wine in the keg, 
                      without pouring out the wine litre by litre, or by submerging the keg in a larger container of 
                      water.
                      Using the ideas of Archimedes and Kepler, one way you could do it is by thinking of the keg 
                      as a cylinder – taking the maximum and minimum volume of cylinders and averaging them.
                      Another way of thinking about it is to think of ‘slicing’ the keg into a number of cylinders and 
                      then adding them up; the more cylinders you took the more accurate you would be.
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...Module c total change an introduction to integral calculus table of contents area under the curve definite antiderivative steps in integration using standard rules integrals functions with constant multiples sum and difference more areas applications a taste things come post test solutions this final section we will investigate another important aspect called one most is find volumes these problems have been considered by practitioners since earliest times greek mathematician eudoxus about bc credited developing first he found approximate circle sandwiching it between polygons sides was developed further archimedes include many types shapes but wasn t until th century when johannes kepler during course his astronomical investigations wanted method for finding sectors that ideas moved ahead interested two firstly as astronomer ellipse formed path planets around sun approximated triangles their vertex at planet secondly connoisseur wine so story goes exact calculate volume kegs thought b...

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